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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.